Logitech MX ERGO Advanced Wireless Trackball mouse

Category Mouse,
Computer Accessories Brand Specification Number of buttons: 8 (Left/Right-click, Back/Forward, Scroll-wheel with Right/Left-tilt and Middle-click, Precision Mode, Easy-switch) Number of customizable buttons: 6 Sensor technology: Logitech Advanced Optical Tracking Nominal value: 380 dpi Battery: Rechargeable Li-Po (500 mAh) battery Battery life: Up to 4 months on a single full charge